[Z]

It's an emotional issue as much as it is a physical one. The way I see it, the man has signed over his rights to the woman the moment she falls pregnant (to be crude, he did sort of... give it away, directly to the woman...) and the decision is ultimately hers about whether or not she aborts a pregnancy. I'd hope that in most cases, it would be a mutual decision where applicable, but it should always be the woman's choice whether she goes through with it or not, even if it goes against the man's wishes, because she's the one who has to go through with it.